Plunger for baling-presses.



No. 727,850; PATENTED MAY 12,1903. G. SCHUBERT.

PLUNGBR FOR BALING PRESSES, V APPLIGATION FILED JULY 1901..

No 11011111...I

NTTED STATES Patented lVay 12, 1903.

GEORGE SCHUBERT, OF RUSHIG, TEXAS.

YPLUNGER FOR BALING-PRESSES..` V`V SPECIFICATION forming part of lLetters Patent No. 727,850dated`1VIay 12, 19.03.A

Applicants-ala July e, 1901. seria No.. 67,309. (Nummer.)

.To @ZZ whom' it maypooncernf:

Be it known that I, GEORGE SCHUBERT, a citizen of the United States, residing at Rushing, in the county of Tarrant and State of Texas, have invented certain new and useful Improvements in P1ungersforBaling-Presses, of which the following is a specification, reference being had therein to the accompanying drawings, in which- 4 Figure l is a front lView of a baling-press plungerprovidedwith myimprovement. Fig. 2 is a rear view of said plunger. Fig. 3 is a side viewot' same, showing the plunger in position in a baling-press, with the press partly f broken away and in section to show the operation of the improvement. Fig. 4 is a seetion view taken on line l 1, Fig. 5, showing the location of the trip and the bearings for same. Fig. 5 is a top plan view of the plunger with part of the top plate broken away to show parts below in full lines. Fig:6 is a detail end View of the trip, and Fig. 7 is a detail side view of same.

My present invention relates to an improvement in a plunger for baling-presses; and it consists in a trip so pivoted in the upper and front part of the body of the plunger in near a vertical position and with its upper end, at edge, projecting above the upper edge of the plunger, and remaining' rigid in such position as the plunger moves inward,and to be pressed down beneath the upper level of the plunger as said plunger moves back or out from beneath the trough of the press, and thus avoid the hanging of the plunger within the trough of the press.

In the drawings, A designates the body orV F is the top plate or flange extending back some distance.

H is a rib extending from the center boss down to the lower edge of the plunger. I 1

are similar ribs extending from near each side of the boss E to the top plate F.

All the above are arranged as in common use and will be readily' understood.

a designates the face portion of the trip, having the lower portion b cut out, forming the ridge g and crease b, to allow of its turning down, as shown in dotted lines in Fig. 3, and allow the front edge J of the plunger to run up higher. v

d d are bearings formed on the lower edge of the trip a proper distance from each end, to be seated inthe ribs'I I of the plunger, which are formed for this purpose.

The front and lower part g of the trip must be left full to forma joint with the face ofv the plunger or edge J. l Y

The ribs I I are cut out farenough back to allow of the placing of the trip and also far enough down below the edge J to form a bearing for the; trip. This trip does not extend clear across the upper face of the plunger; but enough stock of' the plunger is left on each endvofthe trip to provide room for the upper retainer-slots B2, as seen in Fig. l, for the usual retainers. p

h is a bar secured in near the center of the trip B and far enough from the upper edge of the trip to be just beneath the upper plate F when the trip is in position and projecting with its free end rearward and curved to come with its free'end to near the rear" end of the boss E when the trip is closed, as seen in full 'lines in Figs. 3 and 4.

is aspiral spring of sufficient length to provide, the lnecessary elasticity and secured -with oneend on the bolt il and with its other end in the rear end ofthe bar h in a manner to hold the trip closed up against the plunger. The bearings of the trip are low enough beneath the'edge J of the plunger and the bar h is near enough the plate F-so that after the trip'is put in place and the bar h secured in the trip said trip cannot disengage from said openingof the plunger, and the heavier the pressure is on the upper and front edge of the trip the more rigid the trip will be, and the power of the spring 1l is so adjusted as to hold the trip in a vertical position or closed after released from the downward pressure of the compressed material. The centers of the bearings rl d of the trip are far enough back IOO from the Vertical line of the downward pressure on the upper edge of the trip so that when a heavy downward pressure is exerted ou the top edge of the trip it will aid in kicking the plunger back as soon as said plunger is released from any forward pressure and being pressed down by the compressed material to the position as seen in dotted lines in Fig. 3, and thus admit of the plunger going back from beneath the trough Without hanging.

The size and proportions herein shown and described can be varied to suit the different material to be baled.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a plunger forabaling-press, thecombination with a trip pivoted Within the plunger and projecting upward with its free end t0 near a vertical position, a bar 7i secured in the trip and projecting rearward, means to secure said bar to the plunger-bar, as and for the purpose described.

2. In a plunger for a baling-press, the coinbination with a trip pivoted within the plunger and projecting upward, with its free end to near a vertical position, a bar h secured in the trip and projecting rearward, a spring secured to its rear end,and to the plunger, as and for the purpose described.

3. In a plunger for a baling-press, the cornbination with a trip pivoted within the plunger and projecting upward, with its free end to near a vertical position, bearings cl d on said trip, ribs I I recesses formed therein for bearings, as and for the purpose described.

4E. In a plunger for a baling-press the combination with a trip pivoted Within the plunger and projecting upward with its free end to near a vertical position, bearings CZ el on said trip, ribs I I recesses formed therein for bearings, a crease b and a projection g to engage with the edge J, as and for the purpose described.

GEORGE SCHUBERT.

Witnesses:

J No. A. WILLIAMS, THOs. A. WILLIAMS. 

